74971207850 has 384 divisors, whose sum is σ = 190562803200. Its totient is φ = 21676032000.

The previous prime is 74971207819. The next prime is 74971207873. The reversal of 74971207850 is 5870217947.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 311083730 + ... + 311083970.

It is an arithmetic number, because the mean of its divisors is an integer number (496257300).

Almost surely, 2^74971207850 is an apocalyptic number.

74971207850 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74971207850 is an abundant number, since it is smaller than the sum of its proper divisors (115591595350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74971207850 is a wasteful number, since it uses less digits than its factorization.

74971207850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 50.

The spelling of 74971207850 in words is "seventy-four billion, nine hundred seventy-one million, two hundred seven thousand, eight hundred fifty".